Mapp v. Ohio

Mapp v. Ohio, 367 U.S. 643 (1961), was a landmark case in the area of U.S. criminal procedure, in which the United States Supreme Court decided that evidence obtained in violation of the Fourth Amendment protection against "unreasonable searches and seizures" must be excluded from criminal prosecutions in state courts, as well as federal courts.— Excerpted fromMapp v. Ohioon Wikipedia, the free encyclopedia.

All evidence obtained by searches and seizures in violation of the Federal Constitution is inadmissible in a criminal trial in a state court. Wolf v. Colorado, 338 U.S. 25, overruled insofar as it holds to the contrary. Pp. 643-660.